Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1 | /* |
| 2 | * include/linux/if_team.h - Network team device driver header |
| 3 | * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | */ |
| 10 | |
| 11 | #ifndef _LINUX_IF_TEAM_H_ |
| 12 | #define _LINUX_IF_TEAM_H_ |
| 13 | |
| 14 | #ifdef __KERNEL__ |
| 15 | |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 16 | #include <linux/netpoll.h> |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 17 | #include <net/sch_generic.h> |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 18 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 19 | struct team_pcpu_stats { |
| 20 | u64 rx_packets; |
| 21 | u64 rx_bytes; |
| 22 | u64 rx_multicast; |
| 23 | u64 tx_packets; |
| 24 | u64 tx_bytes; |
| 25 | struct u64_stats_sync syncp; |
| 26 | u32 rx_dropped; |
| 27 | u32 tx_dropped; |
| 28 | }; |
| 29 | |
| 30 | struct team; |
| 31 | |
| 32 | struct team_port { |
| 33 | struct net_device *dev; |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 34 | struct hlist_node hlist; /* node in enabled ports hash list */ |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 35 | struct list_head list; /* node in ordinary list */ |
| 36 | struct team *team; |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 37 | int index; /* index of enabled port. If disabled, it's set to -1 */ |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 38 | |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 39 | bool linkup; /* either state.linkup or user.linkup */ |
| 40 | |
| 41 | struct { |
| 42 | bool linkup; |
| 43 | u32 speed; |
| 44 | u8 duplex; |
| 45 | } state; |
| 46 | |
| 47 | /* Values set by userspace */ |
| 48 | struct { |
| 49 | bool linkup; |
| 50 | bool linkup_enabled; |
| 51 | } user; |
| 52 | |
| 53 | /* Custom gennetlink interface related flags */ |
| 54 | bool changed; |
| 55 | bool removed; |
| 56 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 57 | /* |
| 58 | * A place for storing original values of the device before it |
| 59 | * become a port. |
| 60 | */ |
| 61 | struct { |
| 62 | unsigned char dev_addr[MAX_ADDR_LEN]; |
| 63 | unsigned int mtu; |
| 64 | } orig; |
| 65 | |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 66 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 67 | struct netpoll *np; |
| 68 | #endif |
| 69 | |
Jiri Pirko | a86fc6b | 2012-07-27 06:28:54 +0000 | [diff] [blame] | 70 | s32 priority; /* lower number ~ higher priority */ |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 71 | u16 queue_id; |
| 72 | struct list_head qom_list; /* node in queue override mapping list */ |
Jiri Pirko | 5149ee5 | 2012-06-19 05:54:05 +0000 | [diff] [blame] | 73 | long mode_priv[0]; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 74 | }; |
| 75 | |
Jiri Pirko | 68c4504 | 2012-07-11 05:34:04 +0000 | [diff] [blame] | 76 | static inline bool team_port_enabled(struct team_port *port) |
| 77 | { |
| 78 | return port->index != -1; |
| 79 | } |
| 80 | |
| 81 | static inline bool team_port_txable(struct team_port *port) |
| 82 | { |
| 83 | return port->linkup && team_port_enabled(port); |
| 84 | } |
Jiri Pirko | 52a4fd7 | 2012-06-26 06:52:46 +0000 | [diff] [blame] | 85 | |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 86 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 87 | static inline void team_netpoll_send_skb(struct team_port *port, |
| 88 | struct sk_buff *skb) |
| 89 | { |
| 90 | struct netpoll *np = port->np; |
| 91 | |
| 92 | if (np) |
| 93 | netpoll_send_skb(np, skb); |
| 94 | } |
| 95 | #else |
| 96 | static inline void team_netpoll_send_skb(struct team_port *port, |
| 97 | struct sk_buff *skb) |
| 98 | { |
| 99 | } |
| 100 | #endif |
| 101 | |
| 102 | static inline int team_dev_queue_xmit(struct team *team, struct team_port *port, |
| 103 | struct sk_buff *skb) |
| 104 | { |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 105 | BUILD_BUG_ON(sizeof(skb->queue_mapping) != |
| 106 | sizeof(qdisc_skb_cb(skb)->slave_dev_queue_mapping)); |
| 107 | skb_set_queue_mapping(skb, qdisc_skb_cb(skb)->slave_dev_queue_mapping); |
| 108 | |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 109 | skb->dev = port->dev; |
| 110 | if (unlikely(netpoll_tx_running(port->dev))) { |
| 111 | team_netpoll_send_skb(port, skb); |
| 112 | return 0; |
| 113 | } |
| 114 | return dev_queue_xmit(skb); |
| 115 | } |
| 116 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 117 | struct team_mode_ops { |
| 118 | int (*init)(struct team *team); |
| 119 | void (*exit)(struct team *team); |
| 120 | rx_handler_result_t (*receive)(struct team *team, |
| 121 | struct team_port *port, |
| 122 | struct sk_buff *skb); |
| 123 | bool (*transmit)(struct team *team, struct sk_buff *skb); |
| 124 | int (*port_enter)(struct team *team, struct team_port *port); |
| 125 | void (*port_leave)(struct team *team, struct team_port *port); |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame^] | 126 | void (*port_change_dev_addr)(struct team *team, struct team_port *port); |
Jiri Pirko | 4bccfd1 | 2012-06-19 05:54:16 +0000 | [diff] [blame] | 127 | void (*port_enabled)(struct team *team, struct team_port *port); |
| 128 | void (*port_disabled)(struct team *team, struct team_port *port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 129 | }; |
| 130 | |
| 131 | enum team_option_type { |
| 132 | TEAM_OPTION_TYPE_U32, |
| 133 | TEAM_OPTION_TYPE_STRING, |
Jiri Pirko | 2615598 | 2012-04-04 12:16:26 +0000 | [diff] [blame] | 134 | TEAM_OPTION_TYPE_BINARY, |
Jiri Pirko | 14f066b | 2012-04-10 05:15:43 +0000 | [diff] [blame] | 135 | TEAM_OPTION_TYPE_BOOL, |
Jiri Pirko | 6982163 | 2012-07-27 06:28:53 +0000 | [diff] [blame] | 136 | TEAM_OPTION_TYPE_S32, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 137 | }; |
| 138 | |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 139 | struct team_option_inst_info { |
| 140 | u32 array_index; |
| 141 | struct team_port *port; /* != NULL if per-port */ |
| 142 | }; |
| 143 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 144 | struct team_gsetter_ctx { |
| 145 | union { |
| 146 | u32 u32_val; |
| 147 | const char *str_val; |
| 148 | struct { |
| 149 | const void *ptr; |
| 150 | u32 len; |
| 151 | } bin_val; |
Jiri Pirko | 14f066b | 2012-04-10 05:15:43 +0000 | [diff] [blame] | 152 | bool bool_val; |
Jiri Pirko | 6982163 | 2012-07-27 06:28:53 +0000 | [diff] [blame] | 153 | s32 s32_val; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 154 | } data; |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 155 | struct team_option_inst_info *info; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 156 | }; |
| 157 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 158 | struct team_option { |
| 159 | struct list_head list; |
| 160 | const char *name; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 161 | bool per_port; |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 162 | unsigned int array_size; /* != 0 means the option is array */ |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 163 | enum team_option_type type; |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 164 | int (*init)(struct team *team, struct team_option_inst_info *info); |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 165 | int (*getter)(struct team *team, struct team_gsetter_ctx *ctx); |
| 166 | int (*setter)(struct team *team, struct team_gsetter_ctx *ctx); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 167 | }; |
| 168 | |
Jiri Pirko | 0f1aad2 | 2012-06-19 05:54:11 +0000 | [diff] [blame] | 169 | extern void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info); |
| 170 | extern void team_options_change_check(struct team *team); |
| 171 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 172 | struct team_mode { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 173 | const char *kind; |
| 174 | struct module *owner; |
| 175 | size_t priv_size; |
Jiri Pirko | 5149ee5 | 2012-06-19 05:54:05 +0000 | [diff] [blame] | 176 | size_t port_priv_size; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 177 | const struct team_mode_ops *ops; |
| 178 | }; |
| 179 | |
| 180 | #define TEAM_PORT_HASHBITS 4 |
| 181 | #define TEAM_PORT_HASHENTRIES (1 << TEAM_PORT_HASHBITS) |
| 182 | |
| 183 | #define TEAM_MODE_PRIV_LONGS 4 |
| 184 | #define TEAM_MODE_PRIV_SIZE (sizeof(long) * TEAM_MODE_PRIV_LONGS) |
| 185 | |
| 186 | struct team { |
| 187 | struct net_device *dev; /* associated netdevice */ |
| 188 | struct team_pcpu_stats __percpu *pcpu_stats; |
| 189 | |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 190 | struct mutex lock; /* used for overall locking, e.g. port lists write */ |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 191 | |
| 192 | /* |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 193 | * List of enabled ports and their count |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 194 | */ |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 195 | int en_port_count; |
| 196 | struct hlist_head en_port_hlist[TEAM_PORT_HASHENTRIES]; |
| 197 | |
| 198 | struct list_head port_list; /* list of all ports */ |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 199 | |
| 200 | struct list_head option_list; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 201 | struct list_head option_inst_list; /* list of option instances */ |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 202 | |
| 203 | const struct team_mode *mode; |
| 204 | struct team_mode_ops ops; |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 205 | bool queue_override_enabled; |
| 206 | struct list_head *qom_lists; /* array of queue override mapping lists */ |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 207 | long mode_priv[TEAM_MODE_PRIV_LONGS]; |
| 208 | }; |
| 209 | |
| 210 | static inline struct hlist_head *team_port_index_hash(struct team *team, |
| 211 | int port_index) |
| 212 | { |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 213 | return &team->en_port_hlist[port_index & (TEAM_PORT_HASHENTRIES - 1)]; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 214 | } |
| 215 | |
| 216 | static inline struct team_port *team_get_port_by_index(struct team *team, |
| 217 | int port_index) |
| 218 | { |
| 219 | struct hlist_node *p; |
| 220 | struct team_port *port; |
| 221 | struct hlist_head *head = team_port_index_hash(team, port_index); |
| 222 | |
| 223 | hlist_for_each_entry(port, p, head, hlist) |
| 224 | if (port->index == port_index) |
| 225 | return port; |
| 226 | return NULL; |
| 227 | } |
| 228 | static inline struct team_port *team_get_port_by_index_rcu(struct team *team, |
| 229 | int port_index) |
| 230 | { |
| 231 | struct hlist_node *p; |
| 232 | struct team_port *port; |
| 233 | struct hlist_head *head = team_port_index_hash(team, port_index); |
| 234 | |
| 235 | hlist_for_each_entry_rcu(port, p, head, hlist) |
| 236 | if (port->index == port_index) |
| 237 | return port; |
| 238 | return NULL; |
| 239 | } |
| 240 | |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame^] | 241 | extern int team_port_set_team_dev_addr(struct team_port *port); |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 242 | extern int team_options_register(struct team *team, |
| 243 | const struct team_option *option, |
| 244 | size_t option_count); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 245 | extern void team_options_unregister(struct team *team, |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 246 | const struct team_option *option, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 247 | size_t option_count); |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 248 | extern int team_mode_register(const struct team_mode *mode); |
| 249 | extern void team_mode_unregister(const struct team_mode *mode); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 250 | |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 251 | #define TEAM_DEFAULT_NUM_TX_QUEUES 16 |
| 252 | #define TEAM_DEFAULT_NUM_RX_QUEUES 16 |
| 253 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 254 | #endif /* __KERNEL__ */ |
| 255 | |
| 256 | #define TEAM_STRING_MAX_LEN 32 |
| 257 | |
| 258 | /********************************** |
| 259 | * NETLINK_GENERIC netlink family. |
| 260 | **********************************/ |
| 261 | |
| 262 | enum { |
| 263 | TEAM_CMD_NOOP, |
| 264 | TEAM_CMD_OPTIONS_SET, |
| 265 | TEAM_CMD_OPTIONS_GET, |
| 266 | TEAM_CMD_PORT_LIST_GET, |
| 267 | |
| 268 | __TEAM_CMD_MAX, |
| 269 | TEAM_CMD_MAX = (__TEAM_CMD_MAX - 1), |
| 270 | }; |
| 271 | |
| 272 | enum { |
| 273 | TEAM_ATTR_UNSPEC, |
| 274 | TEAM_ATTR_TEAM_IFINDEX, /* u32 */ |
| 275 | TEAM_ATTR_LIST_OPTION, /* nest */ |
| 276 | TEAM_ATTR_LIST_PORT, /* nest */ |
| 277 | |
| 278 | __TEAM_ATTR_MAX, |
| 279 | TEAM_ATTR_MAX = __TEAM_ATTR_MAX - 1, |
| 280 | }; |
| 281 | |
| 282 | /* Nested layout of get/set msg: |
| 283 | * |
| 284 | * [TEAM_ATTR_LIST_OPTION] |
| 285 | * [TEAM_ATTR_ITEM_OPTION] |
| 286 | * [TEAM_ATTR_OPTION_*], ... |
| 287 | * [TEAM_ATTR_ITEM_OPTION] |
| 288 | * [TEAM_ATTR_OPTION_*], ... |
| 289 | * ... |
| 290 | * [TEAM_ATTR_LIST_PORT] |
| 291 | * [TEAM_ATTR_ITEM_PORT] |
| 292 | * [TEAM_ATTR_PORT_*], ... |
| 293 | * [TEAM_ATTR_ITEM_PORT] |
| 294 | * [TEAM_ATTR_PORT_*], ... |
| 295 | * ... |
| 296 | */ |
| 297 | |
| 298 | enum { |
| 299 | TEAM_ATTR_ITEM_OPTION_UNSPEC, |
| 300 | TEAM_ATTR_ITEM_OPTION, /* nest */ |
| 301 | |
| 302 | __TEAM_ATTR_ITEM_OPTION_MAX, |
| 303 | TEAM_ATTR_ITEM_OPTION_MAX = __TEAM_ATTR_ITEM_OPTION_MAX - 1, |
| 304 | }; |
| 305 | |
| 306 | enum { |
| 307 | TEAM_ATTR_OPTION_UNSPEC, |
| 308 | TEAM_ATTR_OPTION_NAME, /* string */ |
| 309 | TEAM_ATTR_OPTION_CHANGED, /* flag */ |
| 310 | TEAM_ATTR_OPTION_TYPE, /* u8 */ |
| 311 | TEAM_ATTR_OPTION_DATA, /* dynamic */ |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 312 | TEAM_ATTR_OPTION_REMOVED, /* flag */ |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 313 | TEAM_ATTR_OPTION_PORT_IFINDEX, /* u32 */ /* for per-port options */ |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 314 | TEAM_ATTR_OPTION_ARRAY_INDEX, /* u32 */ /* for array options */ |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 315 | |
| 316 | __TEAM_ATTR_OPTION_MAX, |
| 317 | TEAM_ATTR_OPTION_MAX = __TEAM_ATTR_OPTION_MAX - 1, |
| 318 | }; |
| 319 | |
| 320 | enum { |
| 321 | TEAM_ATTR_ITEM_PORT_UNSPEC, |
| 322 | TEAM_ATTR_ITEM_PORT, /* nest */ |
| 323 | |
| 324 | __TEAM_ATTR_ITEM_PORT_MAX, |
| 325 | TEAM_ATTR_ITEM_PORT_MAX = __TEAM_ATTR_ITEM_PORT_MAX - 1, |
| 326 | }; |
| 327 | |
| 328 | enum { |
| 329 | TEAM_ATTR_PORT_UNSPEC, |
| 330 | TEAM_ATTR_PORT_IFINDEX, /* u32 */ |
| 331 | TEAM_ATTR_PORT_CHANGED, /* flag */ |
| 332 | TEAM_ATTR_PORT_LINKUP, /* flag */ |
| 333 | TEAM_ATTR_PORT_SPEED, /* u32 */ |
| 334 | TEAM_ATTR_PORT_DUPLEX, /* u8 */ |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 335 | TEAM_ATTR_PORT_REMOVED, /* flag */ |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 336 | |
| 337 | __TEAM_ATTR_PORT_MAX, |
| 338 | TEAM_ATTR_PORT_MAX = __TEAM_ATTR_PORT_MAX - 1, |
| 339 | }; |
| 340 | |
| 341 | /* |
| 342 | * NETLINK_GENERIC related info |
| 343 | */ |
| 344 | #define TEAM_GENL_NAME "team" |
| 345 | #define TEAM_GENL_VERSION 0x1 |
| 346 | #define TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME "change_event" |
| 347 | |
| 348 | #endif /* _LINUX_IF_TEAM_H_ */ |